[Top 3] Borderlands 3 Best FL4K Builds

Borderlands 3 Best FL4K Builds
learn some of the best ways to play as FL4K


FL4K is the preeminent murder-bot of borderlands 3, giving you a variety of ways to bring foes to their knees, or to the stubs where their knees used to be. Channel your inner mace Windu, Striking at an opponent's most vulnerable spots, dealing immense damage. Become a sort of robotic virus and watch as everyone around you gloriously explodes. Command a Rakk armada, bombarding enemies with well, Rakk. All this and more is possible If you choose FL4K.

Build one: Chernobyl 

Chernobyl skill tree

Radiation is the name of the game for this build, the goal of the game? Murder! With some well-placed skill points and some choice gear, you can be irradiating everything left, right, and center. Read this and you’ll soon be the Radman of the badlands,  the walking Armageddon, a third nickname! Here are the skills you’ll need

  • Interplanetary stalker: whenever FL4K kills an enemy they get a stack of interplanetary stalker, for each stack FL4K gains a bonus to all damage dealt, additionally they gain a unique stacking bonus based on the type of enemy killed, these stack three times
  • Two F4ng: FL4K has a chance to fire an extra projectile per shot
  • Big Game: FL4K’s Hunter skills become much more effective and have a longer duration
  • The most Dangerous game:  whenever FL4K kills a badass or stronger enemy they gain increased crit damage, gun damage, and handling for a long time, you also get some mula
  • Persistence Hunter: increases FL4K’s gun damage and action skill duration (by 45%!) 
  • Frenzy: When FL4K’s pet deals damage, FL4K and their pet get a stack of frenzy, each stack of frenzy increases damage, all told the stacks represent a potential 40% damage increase, these stacks decay quickly
  • Barbaric Yawp: increases the power of pet bonuses granted to FL4K
  • Megavore: Bl3’s equivalent of the tombstone skill, FL4K gains a chance to score a critical hit against any part of enemies

In this build you’ll be using the Gamma Burst skill, these are the augments recommended

  • Emphatic Rage: For the duration of Gamma Burst, Damage dealt by FL4K is increased
  • Endurance: when FL4K or their pet kills an enemy while Gamma Burst is active, Gamma Burst is extended and pet Damage is increased

Your pet for this build will be the Eridian Skag, who increases FL4K’s damage and fire rate, the Skag’s action command has your Eridian buddy create a singularity, pulling enemies close. Now that we've gone over what you'll need to spec in the skill tree, it’s time to put it all together with the gear

Qaudimizer

The qaudimizer is a legendary rocket launcher, it fires four projectiles in a horizontal line, it cycles between corrosive, incendiary, and radiation damage.

The breath of the dying

The breath of the dying is a legendary assault rifle. In the Endgame, radiation deals 50% less damage to armor, so it pays to have a reliable way to chew through those yellow bars, and there’s no gun better for the task then the breath. It shreds armor, and when it kills an enemy, balls of acid shoot outwards from the brand new corpse! it’s pretty great

The hellwalker

The hellwalker is a legendary Shotgun, it always comes in incendiary, it’s good to diversify your damage types for this build especially, and this gun is damn fun anyways, it shots assume the form of a pentagram, and (more importantly) every time you shoot, a short piece of the doom 2016 theme will play. So much yes.

The Pestilence

The Pestilence is a legendary COV pistol, it always deals radiation, and when it breaks, irradiates the vault hunter, this aspect is integral to this build.it, synergizes beautifully with the artifact prefix that makes this build incredible

The Elemental Projector

The elemental Projector is an artifact prefix that increases the elemental damage you deal when infected with that same damage. I've personally only gotten this on legendary artifacts, but it can appearear in purples and other rarities, the legendary variety provides an additional 183% damage with the given element. This makes the pestilence the best weapon you have, and makes this build super fun. If you can, try to get an Elemental Projector Victory rush

The Red Suit 

The Red Suit is a legendary shield that provides you with immunity to rad damage, it also constantly deals radiation damage to everyone around you, this leaves you with zero drawbacks to using the pestilence extensively 

The Recurring hex

The hex is a legendary grenade that hones in on an enemy and then engulfs the area with its element, the recurring hex causes the grenade to split into three shortly after being thrown, and another three on impact. Getting this grenade in any element is great, especially the radiation for the purposes of this build 

The Bounty Hunter

The bounty hunter legendary class mod gives FL4K a 3% chance to activate any purchased Hunt Kill Skill when dealing gun damage. Bosses are now treated as humans, beasts, and robotics for FL4K's Hunt Skills. It comes with points to frenzy, hunter’s eye, and the most dangerous game

Build 2: Thanatos

Thanatos build tree

Ah the crit build, infamous at this point in borderlands 3’s life Despite 2 nerfs and counting, the crit build is still very viable, and still a whole lot of fun , this build is all about raw damage, if you want to one-shot almost everything you see, this build is the way to go. Now for the skills that put it all together.

  • Turn tail and run: while moving, FL4K constantly regenerates health, and gains damage reduction, while standing still FL4K gains gun damage and fire rate
  • Hidden Machine: when an enemy has no target or is attacking a different target, FL4K deals increased damage
  • Interplanetary stalker: whenever FL4K kills an enemy they get a stack of interplanetary stalker, for each stack FL4K gains a bonus to all damage dealt, additionally they gain a unique stacking bonus based on the type of enemy killed, these stack three times
  • Two F4ng: FL4K has a chance to fire an extra projectile per shot
  • Big Game: FL4K’s Hunter skills become much more effective and have a longer duration
  • The most Dangerous game:  whenever FL4K kills a badass or stronger enemy they gain increased crit damage, gun damage, and handling for a long time, you also get some mula
  • Megavore: Bl3’s equivalent of the tombstone skill, FL4K gains a chance to score a critical hit against any part of enemies

The action skill you will be using for this build is, of course, Fade Away, the augments I recommend equipping  are below

  • Not My Circus: after fade away ends FL4K’s pet will taunt drawing the the attention of all enemies in a huge radius, for a few seconds after taunting the pet gains substantial damage reduction
  • Unblinking Eye: Successive hits on the same target increase FL4K’s critical hit damage by 75% per hit. This resets after 3 hits  

For this build, FL4K’s pet will be the gunslinger jabber, which gives FL4K increased movement speed and critical hit damage, when FL4K issues an attack command, the Gunslinger equips a rocket launcher and fires it at the target, now that we’re all through the skills, time to equip some ridiculous weaponry

The lyuda 

The lyuda is a legendary sniper rifle, and it is a boss shredder. It perfectly compliments the damage oriented build.. The lyuda shoots one bullet that splits into three bullets after a time, the bullet on either side fanning out from the original

The Queens/Kings Call

The Queen’s and King’s call are legendary Jakob'ss pistols that when hitting a crit spot, ricochet 3 times to other opponents, and put three rounds back into your ammo pool, this works splendidly with megavore, adding a whole heap of shelflife to this fantastic weapon

The Butcher

The Butcher is a legendary shotgun that -like the name suggests- butchers enemies The Butcher's high fire rate and reverse recoil pretty much makes it an assault rifle with the damage output of a shotgun

The Gatling Gun 

The Gatling Gun is a legendary assault rifle, a classic straightforward Jacobs, the longer you hold down the button, the faster it fires! 

The Bounty Hunter

The bounty hunter legendary class mod gives FL4K a 3% chance to activate any purchased Hunt Kill Skill when dealing gun damage. Bosses are now treated as humans, beasts, and robotics for FL4K's Hunt Skills. It comes with points to frenzy, hunter’s eye, and the most dangerous game

The Stormfront

The Stormfrontis a legendary grenade that always comes in shock, and it pairs perfectly with the shield being used for this build

The Transformer

the transformer is a legendary shield that converts 100% of shock damage to restore shields, pairing it with the Stormfront providing extra longevity to the build

Otto Idol 

The otto idol is a legendary artifact that Provides a nice amount of health regeneration whenever you kill an enemy

Build 3: Rakk Atakk!

Rakk atakk! build tree

This build is all about using your rakk attack as much as possible, it’s a really fun build, and pretty different from all the others First the skills you’ll need

  • Interplanetary stalker: whenever FL4K kills an enemy they get a stack of interplanetary stalker, for each stack FL4K gains a bonus to all damage dealt, additionally they gain a unique stacking bonus based on the type of enemy killed, these stack three times
  • Two F4ng: FL4K has a chance to fire an extra projectile per shot
  • Big Game: FL4K’s Hunter skills become much more effective and have a longer duration
  • The most Dangerous game:  whenever FL4K kills a badass or stronger enemy they gain increased crit damage, gun damage, and handling for a long time, you also get some mula
  • Eager to impress: whenever FL4K kills an enemy action skill cooldown is reduced, whenever their pet kills an enemy it’s reduced more
  • Megavore: Bl3’s equivalent of the tombstone skill, FL4K gains a chance to score a critical hit against any part of enemies

You’ll, of course, be using the rakk attack, here are the augments

  • Flock n’ load: FL4K sends additional rakk
  • Rakkcelerate: FL4K’s action skill cooldown rate is increased, and you get an additional charge of rakk attack

For this build you’ll be using the spider ant scorcher it gains increased health regeneration and elemental damage, when issued an attack command it’ll charge enemies. Now that the skils are covered time for the gear

The Wagon wheel

The wagon wheel is a legendary pistol, very good damage, and most importantly, occasionally drops with augments to your action skill when anointed

The Flakker

The flakker is a legendry shotgun which can create a wall of explosives, it also hs a decent chance of dropping annointed of the rakk variety

The Storm

The storm is a legendary sniper, it always comes in shock, when hitting a target 4 elemental orbs will rain on the enemy, this is great for taking down shields

The Gatling Gun 

The Gatling Gun is a legendary assault rifle, a classic straightforward Jacobs, the longer you hold down the button, the faster it fires! 

The Barricade Recharger

The Barricade Recharger is a legendary shield, When the shield is fully depleted, it is completely refilled immediately

The Fastball

The Fastball is a legendary grenade, dealing immense damage to a single target. It can come in any element.

The Victory Rush

The victory rush is a legendary Artifact that, when you kill a badass enemy, you gain increased damage and movement speed for a time

The Bounty Hunter

The bounty hunter legendary class mod gives FL4K a 3% chance to activate any purchased Hunt Kill Skill when dealing with gun damage. Bosses are now treated as humans, beasts, and robotics for FL4K's Hunt Skills. It comes with points to frenzy, hunter’s eye, and the most dangerous game

That’s all the builds this time around, go forth and splatter brains with the Beastmaster!

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Mwaaaah, the dorks! Writers have always been celebrated for their excellence. There is a Nevada writer called Logan Stockdale inspired by that same Dork excellence. Thus ends my dumb reference. Cheers
Gamer Since: 1999
Top 3 Favorite Games:The Witcher 3: Wild Hunt, Amnesia: The Dark Descent, Gone Home


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